Joeri has worked at DeltaPatents from 2003 until 2012. In this period he passed the Dutch Patent Attorneys exam and the European Qualifying Examination. He has been an EQE C paper tutor ever since he passed it himself in 2007. In 2012, Joeri switched career and started working as an in-house patent attorney at CNH Industrial in Belgium, where he files and receives many oppositions against European patents for agricultural machinery.
In July 2017 he started working for Keltie in London.